巻号一覧
23 巻 (1988)
- 4 号 p. 295-
- 3 号 p. 187-
- 2 号 p. 99-
- 1 号 p. 3-
23 巻, 4 号
選択された号の論文の9件中1～9を表示しています
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久保田 善久, 高橋 千太郎, 佐藤 宏, 山田 裕司, 松岡 理1988 年 23 巻 4 号 p. 295-302
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーThe deposition and clearance of inhaled or instilled colloidal 198Au-particles were studied in rats with pulmonary lesions induced by delayed type hypersensitivity (DTH) reactions. The increased amount of radioactivity was detected in the lung associated lymph nodes and the kidney of DTH rats on day 4 after intratracheal instillation of 198Au-particles. The initial lung deposition of inhaled 198Au-particles in the lung lobes with DTH lesions was approximately 55% of normal lobes. Early mucociliary clearance of 198Au-particles was impaired in DTH rats. These results suggest that the deposition pattern and the subsequent movements of inhaled particles in the respiratory tract might be considerably influenced by pathologic conditions in the lung.抄録全体を表示PDF形式でダウンロード (3374K) -
β-損害評価のための社会調査の前提となる理論形成の試み土居 雅広, 中島 敬行1988 年 23 巻 4 号 p. 303-308
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーTo carry out Cost-Benefit Analysis in the optimization of radiation protection, first, we have to overcome the paradoxical problem in ethics, that is, how to convert radiological detriments into monetary value. Radiological detriments are composed of not only the objective health detriment (alpha-detriment) but also subjective non-health ones due to psychological stresses against radiological risks (beta-detriments).
Nevertheless we can't neglect the problem of Cost-Benefit Analysis because of the fact that protectional costs are apt to be reduced as other fundamental production costs from the managemental point of view.
The authors have proposed following two different situations concerning the treatment of radiological detriments in the decision-making processes for the optimization of radiation protection. That is,
(1) Since protectional decision making processes for workers are parts of the total safety planning of the facility of interest, beta-detriments for workers should be discussed and determined in the labourmanagement negotiations.
(2) In case of publics, subjective non-health detriments arise from the gap between radiation risks and radiation risk perception that can be clarified by social research techniques.
In addition, this study has clarified criteria in planning of social researches for beta-detriments and constructed a theoretical model designed for these.抄録全体を表示PDF形式でダウンロード (815K) -
長岡 鋭, 坂本 隆一, 斎藤 公明, 堤 正博, 森内 茂1988 年 23 巻 4 号 p. 309-315
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーIn order to clarify the diminution characteristics of terrestrial gamma ray exposure rate due to snow cover, measurements were performed on the ground with and without snow cover. The diminution factors observed were 0.36-0.17 for 12-23g/cm2 of water equivalent of the snow cover. According to a calculation by the Monte Carlo method, the corresponding diminution factors were 0.32-0.16. They agreed well as a whole, while the fluctuation of the diminution factors based on the measured exposure rate were fairly large. The fluctuation is deemed to be due to the inhomogeneity in the distribution of the snow cover as well as the gamma ray field. The fluctuation is expected to decrease with increase in the degree of their homogeneity.抄録全体を表示PDF形式でダウンロード (730K) -
上野 陽里, 滝本 晃一1988 年 23 巻 4 号 p. 317-321
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーThe various changes occuring in sperm are often used to estimate the effects of toxic substances in the environment, for the reasons that sperm are the experimental materials concerning to the genetic effects and we can get them easily and repeatedly. As the environmental external ionizing radiation and radioactive elements in the environment are the factors to induce various effects on human body; it is likely to use sperm to estimate the effects of these factors on human body. The present experiment was carried out to evaluate whether the morphological or histochemical changes in sperm were of use to estimate the effects of radiation in the environment health physically, or not. X-rays and tritiated water were used in the present experiment. The observed effects in sperm were the reduction in sperm, morphological changes of sperm head, and the incidence of α-glycerolphophate dehydrogenase (α-GPD) deficient sperm. The results showed that the incidence of the α-GPD deficient sperm was the most suitable index to show the effects of ionizing radiation in three observed changes in sperm, because this change is hardly observed in the normal unirradiated mice and the incidence of α-GPD deficient sperm increased linearly till 1.5 Gy, that is, the relation was shown by the equation: y (%, incidence)=3.07×(Gy, dose).抄録全体を表示PDF形式でダウンロード (531K) -
山下 忠興, 安野 僖剛, 武部 啓, 近藤 宗平1988 年 23 巻 4 号 p. 323-325
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーPDF形式でダウンロード (346K) -
下岡 謙司, 武部 慎一, 和達 嘉樹1988 年 23 巻 4 号 p. 327-329
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーPDF形式でダウンロード (300K) -
武田 洋1988 年 23 巻 4 号 p. 331-342
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーPDF形式でダウンロード (1373K) -
森山 昇1988 年 23 巻 4 号 p. 343-352
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーPDF形式でダウンロード (1223K) -
理化学研究所における放射線管理坂本 一郎1988 年 23 巻 4 号 p. 389-392
発行日: 1988年
公開日: 2010/02/25
ジャーナル フリーPDF形式でダウンロード (395K)
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